n Progressivism: The Strange History of a Radical Idea, Watson presents an intellectual history of American progressivism as a philosophical-political phenomenon, focusing on how and with what consequences the academic discipline of history came to accept and propagate it. This book offers a meticulously detailed historiography and critique of the insularity and biases of academic culture. It shows how the first scholarly interpreters of progressivism were, in large measure, also its intellectual architects, and later interpreters were in deep sympathy with their premises and conclusions. Too many scholarly treatments of the progressive synthesis were products of it, or at least were insufficiently mindful of two central facts: the hostility of progressive theory to the Founders’ Constitution and the tension between progressive theory and the realm of the private, including even conscience itself.